公开(公告)号：US20040252231A1

公开(公告)日：2004-12-16

申请号：US10746284

申请日：2003-12-23

Applicant: Apple Computer, Inc.

Inventor： Giovanni M. Agnoli ,  Andrew Yanowitz ,  John O. Abt ,  Samuel R. Bowman ,  James A. Delwiche ,  Jeffrey C. Dillon

IPC: H04N007/12

CPC classification number: H04N21/4143 ,  H04N5/765 ,  H04N7/088 ,  H04N7/56 ,  H04N21/4135 ,  H04N21/4223 ,  H04N21/4305 ,  H04N21/43632

Abstract: A method of controlling transmission of data from a computer to a video client via an interface device, comprising: reading a register on the interface device to obtain a value indicating temporal proximity to an occurrence of a vertical blanking interval occurs, the value increased incrementally until a vertical blanking interval occurs, and then being reset; deriving a time value, the time value indicating the occurrence of a vertical blanking interval; sending an interrupt to a processor on the computer at the occurrence of the vertical blanking interval; and invoking code in response to an occurrence of the video blanking interval.

Abstract translation: 一种控制数据经由接口设备从计算机传输到视频客户端的方法，包括：读取接口设备上的寄存器以获得指示垂直消隐间隔发生的时间接近度的值，该值逐渐增加直到 发生垂直消隐间隔，然后复位; 导出时间值，指示出现垂直消隐间隔的时间值; 在垂直消隐间隔发生时向计算机上的处理器发送中断; 并响应于视频消隐间隔的发生而调用代码。

公开(公告)号：US20040255339A1

公开(公告)日：2004-12-16

申请号：US10746283

申请日：2003-12-23

Applicant: Apple Computer, Inc

Inventor： Giovanni M. Agnoli ,  Andrew Yanowitz ,  John O. Abt ,  Samuel R, Bowman ,  James A, Delwiche ,  Jeffery C. Dillon

IPC: H04N007/16

CPC classification number: H04N21/43632 ,  G06F3/14 ,  G09G2350/00 ,  G09G2370/025 ,  G09G2370/10 ,  H04L47/30 ,  H04N19/152 ,  H04N21/4113 ,  H04N21/64707

Abstract: A method for controlling data transmission between a computer and a video client via an interface, the method comprising: the computer polling the interface a first time to determine the size of the buffer on the interface; receiving a first buffer size value from the interface; sending a plurality of frames of video and audio data to the buffer on the interface such that a delay period exists between the sending of each frame; the computer polling the interface a second time to determine buffer size after the frames are sent to the interface; receiving a second buffer size value from the interface; and modifying the amount of time between the transmission of frames.

Abstract translation: 一种用于经由接口控制计算机和视频客户端之间的数据传输的方法，所述方法包括：所述计算机首次轮询所述接口以确定所述接口上的所述缓冲器的大小; 从接口接收第一个缓冲区大小值; 将多个视频和音频数据帧发送到接口上的缓冲器，使得在每个帧的发送之间存在延迟周期; 计算机轮询接口第二次确定帧发送到接口后的缓冲区大小; 从所述接口接收第二缓冲器大小值; 以及修改帧传输之间的时间量。

公开(公告)号：US20040255338A1

公开(公告)日：2004-12-16

申请号：US10746281

申请日：2003-12-23

Applicant: Apple Computer, Inc.

Inventor： Giovanni M. Agnoli ,  Andrew Yanowitz ,  John O. Abt ,  Samuel R. Bowman ,  James A. Delwiche ,  Jeffrey C. Dillon

IPC: H04N007/173 ,  H04N007/16

CPC classification number: H04N21/23602 ,  H04N7/54 ,  H04N21/4126 ,  H04N21/4143 ,  H04N21/4342 ,  H04N21/43632

Abstract: A data stream format for transmission of data frames between a computer and a video client via an interface, the data stream being a plurality of data frames transmitted sequentially, each data frame comprising: a frame header; video data, the video data following the frame header; and audio data, the audio data following the video data.

Abstract translation: 一种用于经由接口在计算机和视频客户端之间传输数据帧的数据流格式，所述数据流是顺序发送的多个数据帧，每个数据帧包括：帧头; 视频数据，跟随帧头的视频数据; 和音频数据，跟随视频数据的音频数据。